Hoisting and conveying apparatus.



PATENTED SEPT. 5, 1905.

C. J. ALLEN. HOISTING AND CONVEYING APPARATUS.

APPLIOATION FILED SEPT 15, 1904.

INVENTU @b/Qfl da W/TNESSES,

CHARLES J. ALLEN, OF SAN FRANCISCO, CALIFORNIA.

HOISTING AND CONVEYING APPARATUS.

Specification'of Letters Patent.

Patented Sept. 5, 1905.

Application filed September 15, 1904. Serial No. 224.533.

To It It'll/Nib it 712/07 concern.-

Be it known that I, CHARLES J. ALLEN, a citizen of the United States, residing in the city and county of San Francisco and State of California, have invented new and useful Improvements in Hoisting and Conveying Apparatus, of which the following is a specification.

My invention relates to improvements in hoisting and conveying apparatus. Its object is to provide a simple and portable apparatus that can be quickly and easily rigged up and which is designed particularly for moving loads short distances in vertical and horizontal directions, as in handling material about a building in course of construction and for excavating, loading, or unloadingcoal and the like. for transferring burdens from a ship to the dock, and vice versa, and generally where it is now usual to employ either a block and tackle or a derrick and boom.

It consists of the parts and the construction and combination of parts, as hereinafter more fully described and claimed, having reference to the accompanying drawings, in which Figures 1 and 3 are diagrammatic views of my invention. Fig. 2 is an end elevation of grab-hook. Figs. A and 5 are modified forms of my invention.

In its simplest form, as shown in Fig. 1, the invention comprises suitable overhead end supports A A; respective blocks 2 3, a burden-supporting rope 4: rove through one of said blocks and a counterbalanced haul-rope 5 rove through the other of said blocks and j carrying a block 2', while within the building having the weight 6 at one end; a block 7 on the opposite end of the haul-rope, through which the supporting-rope A passes; means, as the hoist 8, for exerting a tension on the two ropes in opposition to the weight, and means, as the spring hook or grab 9, engageable with the haul-rope, or a support for the 1 weight, as 10, Fig. 3, to allow the burden to be lowered when the weight is elevated. The grab 9 is normally to one side of the vertical plane of the sections of the ropes between blocks 2 3, so as not to interfere with the traverse of the burden between the two supports. It is moved across this plane by suitable means, as the hand-cord 11, passing over pulley 12, to check the return of the block 7 toward the opposite end support.

In operation if it is desired to pick up a burden at a point adjacent to support A and move it over to and deposit it adjacent to support A the grab 9 is disengaged, the drum 8 is rotated to unwind rope 1, and the weight is allowed to drop to bring the block '7 to a point immediately above the burden to be lifted. The burden-carrier being lowered and loaded with a load whose weight added to the weight of the suspended parts between the supports is less than that of the counterweight 6, the hoisting-drum is revolved to wind up rope 6 and lift the burden into position shown in Fig. 2. The rotation of the drum is continued to exert a pull on the rope 4 to lift the counterweight and move the burden toward support A. Arriving at the desired spot, the cord 11 is pulled to engage the grab 9 with the rope 5 behind block 7. The drum may then be slackcd up to deposit the load, the weight 6 being sustained temporarily by the grab. To move a burden in the opposite direction, the operation is reversed, in this case the drum being slackcd off according with the dropping of the weight. Obviously the limit of horizontal conveyance is approximately the distance that the weight may reciprocate in. This, however, is sutlicient for the general purposes of the invention, which, as before said, was intended as a substitute for the dorrick-and-boom and the block-and-tacklc hoist.

Fig. A shows the adaptation of the invention for building purposes, where it is usual to lift the material by block and tackle and then to swing the load by hand in through the window to be deposited on the floor. By my device a suitable outrigger A is provided and at any convenient or suitable distance from the window the corresponding block 3 is attached to any suitable support, as a girder or other part of the frame. The same elements arranged in the same way and similarly operated are employed as previously described--to wit, the ropes 1 5, counterweight 6, block 7, hoist S, grab 9', and line 11. If

it is desired to dump a load at any point intermediate the two supporting-blocks 2 block 13 may be interposed having a suitable rigid support, and against which the block 7 will contact to limit the further movement of the latter toward block 3 and allow of the independent movement of the hoisting-rope.

I prefer also to use where mortar. sand, and the like are handled a self-dumping burden carrier or bucket, as 14:. This bucket is more nearly in the form of a right-angled triangle in cross-section with the hypotenuse as the front receding portion. The bail 15 is pivoted to the bucket forward of the vertical wall, and the normal upright position of the bucket when suspended clear of the ground is maintained by means of stops 16 limiting the movement or the bucket in one direction about the bail-pivots. The moment the bucket in its descent strikes a rigid stop, as the floor, the bucket tips forward onto its hypotenuse portion to automatically discharge its contents. It must be slightly elevated and suspended free when being loaded.

In lieu of a counterweight arrangement, as previously described, I may use a double hoist 8, as represented in Fig. 5, which would operate essentially on the same principle. In this case the rope 5 would lead around a direction-pulley 1'7 and attach to one of the drums of hoist 8, the hoisting-rope 4: would attach to the other drum, and the two drums would be adapted to operate either singly or in unison in a manner well known in the art. When a burden was being raised or lowered, the hoisting-drum only would move. hen a burden was being reciprocated horizontally, both drums would operate in unison to pay out one rope equally with the winding up of the other. In fact, in all the systems the two ropes operate as a single rope during horizontal travel of the burden.

Having thus described my invention, what I claim, and desire to secure by Letters Patent, is-

1. In hoisting and conveying apparatus, the combination with end supports of a hoistingrope on one support, acounterbalanced rope on the other support, a block carried by the counterbalanced rope through which the hoisting-rope passes, means for reciprocating said block between the two supports, and a spring hook or grab normally disposed at one side of the vertical plane of the ropes and adapted to engage with the counterbalanced rope.

2. In hoisting and conveying apparatus, the combination with end supports, of a hoistingrope on one support, a counterbalanced rope on the other support and a block carried by the counterbalanced rope through which the hoisting-rope passes, means for reciprocating said block between the two supports, and a grab-hook movable across the vertical plane of the ropes and adapted to engage'with the counterbalanced rope to check the return of the block carried thereby toward the opposite end support.

3. In hoisting and conveying apparatus, the combination with end supports, a hoistingrope on one support, a counterbalanced rope on the other support having a movable connection with the hoisting-rope intermediate of the burden-carrying end of the latter and its end support, means for reciprocating the burden between the supports, and a hook-shaped member normally out of the vertical plane of the counterbalanced rope and movable across the path of said rope whereby it engages the rope to prevent the return thereof toward the opposite end support.

4:. In hoisting and conveying apparatus, the combination with end supports, of a hoistingrope sustained at one of said end supports, a second rope sustained at the other of said supports, said second rope carrying a weight at one end and having a movable connection at the other end with the hoisting-rope, means for operating the hoisting-rope in opposition to said weight, means for limiting the movement of said weight, and a spring-arm movable across the path of travel of the second rope and having a hook-shaped end whereby it engages the rope to prevent the return of the block carried thereby toward the opposite end support.

5. In hoisting and conveying apparatus, the combination of a hoisting-rope supported intermediate of its ends, a counterbalanced rope having a movable connection with the hoisting-rope and supported intermediate of its ends, means for paying out or winding up the hoisting-rope relative'to the movement of the counterbalanced rope and means including a spring-arm having a hook member and means for moving it across the path of travel of the counterbalanced rope, for holding thecounterbalanced rope to enable the hoisting-rope to act independently.

6. In hoisting and conveying apparatus, a hoisting-rope supported intermediate of its ends, a second rope havingamovable connection with the hoistingrope, means acting through the second rope in opposition. to the hoisting rope, a burden supported by the hoisting-rope, means operating said ropes to reciprocate the burden in a horizontal direction, and a spring hook or grab and means whereby it is moved across the path of travel of the second rope and adapted to engage and to hold said second rope to allow an independent movement of the hoisting-rope.

7. In a hoisting and conveying apparatus, a hoisting-rope supported intermediate of its ends, a second rope having a movable connection with the hoisting-rope and supported intermediate of its ends, a burden supported by the hoisting-rope, means acting through the second rope in opposition to the hoisting-rope to reciprocate the burden in one direction and a spring hook or grab and means whereby it is moved across the path of travel of the second rope and adapted to engage and to hold the second rope to admit of an independent movement of the hoisting-rope.

8. In hoisting and conveying apparatus, the combination of a hoisting-rope supported intermediate of its ends, a counterbalanced rope having a movable connection with the hoisting-rope and supported intermediate of its ends, a burden-carrier, means acting through the hoisting-rope in opposition to the countermy hand in presence of two subscribing witnesses.

CHARLES J. ALLEN.

EUGEN n \V. LEVY i Witnesses: l D. M. DUFFY. 

